1.6.1

• Common Library:
  • Add PlaybackParameters.withPitch(float) method for easily copying a PlaybackParameters with a new pitch value (#2257).
• ExoPlayer:
  • Fix issue where media item transition fails due to recoverable renderer error during initialization of the next media item (#2229).
  • Fix issue where ProgressiveMediaPeriod throws an IllegalStateException as PreloadMediaSource attempts to call its getBufferedDurationUs() before it is prepared (#2315).
  • Fix sending CmcdData in manifest requests for DASH, HLS, and SmoothStreaming (#2253).
  • Ensure AdPlaybackState.withAdDurationsUs(long[][]) can be used after ad groups have been removed. The user still needs to pass in an array of durations for removed ad groups which can be empty or null (#2267).
• Extractors:
  • MP4: Parse alternate_group from the tkhd box and expose it as an Mp4AlternateGroupData entry in each track's Format.metadata (#2242).
• Audio:
  • Fix offload issue where the position might get stuck when playing a playlist of short content (#1920).
• Session:
  • Lower aggregation timeout for platform MediaSession callbacks from 500 to 100 milliseconds and add an experimental setter to allow apps to configure this value.
  • Fix issue where notifications reappear after they have been dismissed by the user (#2302).
  • Fix a bug where the session returned a single-item timeline when the wrapped player is actually empty. This happened when the wrapped player doesn't have COMMAND_GET_TIMELINE available while COMMAND_GET_CURRENT_MEDIA_ITEM is available and the wrapped player is empty (#2320).
  • Fix a bug where calling MediaSessionService.setMediaNotificationProvider is silently ignored after other interactions with the service like setForegroundServiceTimeoutMs (#2305).
• UI:
  • Enable PlayerSurface to work with ExoPlayer.setVideoEffects and CompositionPlayer.
  • Fix bug where PlayerSurface can't be recomposed with a new Player.
• HLS extension:
  • Fix issue where chunk duration wasn't set in CmcdData for HLS media, causing an assertion failure when processing encrypted media segments (#2312).
• RTSP extension:
  • Add support for URI with RTSPT scheme as a way to configure the RTSP session to use TCP (#1484).
• Cast extension:
  • Add support for playlist metadata (#2235).